HP Xw460c HP Insight Control Environment User Guide - Page 167

SAS Drive Inventory, Storage components, Storage Status, Storage Inventory, Fibre Channel HBAs

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• Disk Millisecond/Write-The average time required to complete a write operation • Disk Queue Length-The average number of transfer requests (reads and writes) waiting to be serviced by the SAS drive, including transfers currently being serviced and transfers waiting for service, regardless of where the request is waiting (drive or controller) PMP uses a set of algorithms to determine the SAS drive status. The Disk Queue Length is a primary parameter. However, when the value of the Disk Queue Length exceeds the acceptable value, the Disk Reads/Sec and Writes/Sec are examined to determine whether read or write operations require most of the drive throughput. When combined with Disk Millisecond/Read or Write, PMP can determine if the number of requests for the drive will exceed the capabilities of the drive. SAS Drive Inventory • Drive Information • Displays description of the drive, including size • Displays the hard drive model number • Displays the exact size of the drive as seen by the operating system • Configuration Information • Provides a summary of the drive configuration • Displays the name of the Smart Array controller to which it is attached • Displays the location of the hard drive in its enclosure • Displays the array in which the drive is configured • Provides the SAS protocol negotiated for transfers between this drive and the disk controller Storage components Storage components differ depending on the server environment. PMP is designed to monitor a variety of storage components, including: • Storage enclosures • Fibre Channel HBAs • SCSI arrays and logical and physical disk drives • Smart arrays Storage Status • Storage Transfers/Sec-The number of PCI bus transfers to and from storage each second • Storage MBytes/Sec-The average number of megabytes transferred (read and written) on the storage each second Storage Inventory • Windows/Linux Logical Disks-Lists all of the logical disks in the storage subsystem and identifies their associated drive letter, file system, disk drive size (in MB), and percentage of space used • Windows/Linux Physical Disks-Lists all of the physical disks in the storage subsystem and identifies their associated SCSI ID, drive letter, and array controller Storage components 167

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•
Disk Millisecond/Write—The average time required to complete a write operation
•
Disk Queue Length—The average number of transfer requests (reads and writes) waiting to be serviced
by the SAS drive, including transfers currently being serviced and transfers waiting for service, regardless
of where the request is waiting (drive or controller)
PMP uses a set of algorithms to determine the SAS drive status. The Disk Queue Length is a primary parameter.
However, when the value of the Disk Queue Length exceeds the acceptable value, the Disk Reads/Sec and
Writes/Sec are examined to determine whether read or write operations require most of the drive throughput.
When combined with Disk Millisecond/Read or Write, PMP can determine if the number of requests for the
drive will exceed the capabilities of the drive.
SAS Drive Inventory
•
Drive Information
Displays description of the drive, including size
•
•
Displays the hard drive model number
•
Displays the exact size of the drive as seen by the operating system
•
Configuration Information
Provides a summary of the drive configuration
•
•
Displays the name of the Smart Array controller to which it is attached
•
Displays the location of the hard drive in its enclosure
•
Displays the array in which the drive is configured
•
Provides the SAS protocol negotiated for transfers between this drive and the disk controller
Storage components
Storage components differ depending on the server environment. PMP is designed to monitor a variety of
storage components, including:
•
Storage enclosures
•
Fibre Channel HBAs
•
SCSI arrays and logical and physical disk drives
•
Smart arrays
Storage Status
•
Storage Transfers/Sec—The number of PCI bus transfers to and from storage each second
•
Storage MBytes/Sec—The average number of megabytes transferred (read and written) on the storage
each second
Storage Inventory
•
Windows/Linux Logical Disks—Lists all of the logical disks in the storage subsystem and identifies their
associated drive letter, file system, disk drive size (in MB), and percentage of space used
•
Windows/Linux Physical Disks—Lists all of the physical disks in the storage subsystem and identifies
their associated SCSI ID, drive letter, and array controller
Storage components
167